San Juan County, Washington
Town of Friday Harbor is a town in San Juan County, Washington. 4 rules below are quoted from official sources and independently re-checked, most recently on October 24, 2026. Rules for unincorporated land are on the San Juan County page.
Town building, plan-review, plumbing, mechanical, and clearing/grading permits.
regional modifier: 1.25 (Applied to the building, plumbing, mechanical, and clearing/grading fee tables specified in FHMC 15.04.020.) · minimum after-the-fact fee: >= 50 USD (Excludes the plan-check fee; required permit fee is doubled.)
“Building permit fees shall be assessed in accordance with Table 1-A, Building Permit Fees, of the 1997 Uniform Building Code, Second Printing. A multiplier of 1.25 shall be applied to this table as a regional modifier.”
Accessory dwelling-unit approvals in Friday Harbor's single-family residential zone.
“A deed restriction is recorded with the San Juan County auditor prior to building permit issuance, stating all of the following as set forth in subsections (B)(3)(a) through (B)(3)(g) of this section:”
Town of Friday Harbor does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Friday Harbor's single-family residential zone.
maximum lot area covered by structures: <= 40 percent
“The maximum lot area covered by structures in a single-family residential zone shall not exceed 40 percent.”
Access for development in Friday Harbor's single-family residential zone.
“Access requirements for the single-family residential zone shall be as defined in the street and storm drainage standards as defined in Chapter 12.02 FHMC.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Friday Harbor or San Juan County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Friday Harbor publishes no rule on the point, not that none exists. San Juan County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Friday Harbor means bringing your own water and power. The kit we’d start with:
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